SCUTELLEROIDEA OF IOWA 15 
Subgenus MELANOCHILA Stal 
1872. Melanochila Stal, Svensk. Vet. Handl., 10, No. 4, 19. 
Head somewhat deflexed anteriorly, black; bueculae concolorous. Thorax 
with a narrow abbreviated calloused band before the middle, the anterior 
angles without an outwardly directed tooth. Venter with lateral margins 
sub-calloused, the apical angles of the segments, excepting the angle of the 
sixth segment in the male, not very prominent. 
Mormidea lugens (Fabricius) 
1775. Cimex lugens Fabricius, Syst. Ent., 716. 
1798. ||Cimex albipes Fabricius, Ent. Syst. Suppl., 535. 
1803. Cimex gamma Fabricius, Syst. Rhyng., 7. (EHEmend.) 
1805. Petatoma punctipes Pal. Beauv., Ins. Afr. Amér., 113, Hém., Pl. 8, fig. 6. 
1825. ||Pentatoma punctipes Say, Journ. Acad. Nat. Sci. Phila., IV, 313. (as n. 
sp.). 
1840. Cimex lugens Herrich-Schaeffer, Wanz. Ins., V, 66, fig. 510. 
1859. ||Pentatoma punctipes Say, Compl. Writ., II, 241. 
1862. Mormidea lugens Stal, Stett. Ent. Zeit., XXIII, 1038. 
1876. Mormidea lugens Uhler, Bull. U. S. Geol. Geogr. Surv., II, 285. 
1880. Mormidea lugens Distant, B. C. A. Rhynch. Het., I, 54. 
1904. Mormidea lugens Van Duzee, Trans. Am. Ent. Soc., XXX, 42. 
General form elongate ovate, narrowed, distinctly convex below, not so 
convex above. General color grayish olive. Head black, deeply, coarsely 
punctured, somewhat bronzed, the anterior half deflected abruptly, the 
median lobe more or less distinct entirely to base. Eyes black, very prom- 
inent. Antennae with three basal segments largely pale, the third and 
fourth segments pale only at bases, fuscous for most of their length; seg- 
ments increasing in length progressively from first to fifth; all the seg- 
ments covered with short white hairs. Rostrum pale yellow except median 
line and apical segment which are fuscous; second segment shortest. An- 
terior third of pronotum black, finely punctate; anterior submargin with a 
narrow, transverse, impunctate, abbreviated white line; anterior edge also 
with an abbreviated white line; lateral submargins white, impunctate, the 
extreme edge narrowly black; posterior portion of pronotum paler and 
more coarsely, irregularly punctate, the posterior angles not prominent, 
rounded. Scutellum black, slightly bronzed, rather sparsely, irregularly 
punctured, the terminal and lateral margins white with the extreme lateral 
edges black. Hemelytra coarsely, sparsely punctate, the narrow exterior 
basal margin yellowish white, the general surface olivaceous; membrane 
hyaline, the veins not prominent. Tergum black, finely, evenly punctate, 
the connexivum very narrow whitish. Venter blackish bronzed, thickly, 
“deeply and rather regularly punctate, narrowly, regularly margined with 
white. Thoracic side pieces blackish bronzed, punctured, the coxal enlarge- 
ments pale. Legs pale yellow to whitish with black points; apical tarsal 
segment and claws fuscous. Length, 6.0-7.5 mm. Width across pronotum, 
3.0-4.0 mm. 
The grayish olivaceous color with the two transverse, abbrevi- 
ated, white lines on the pronotum anteriorly and the black scu- 
